using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using Microsoft.EntityFrameworkCore;
using ApiProject.Api.Repository;
using AuditLogDemo.Fliters;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using ApiProject.Api.PramaModel;
using Microsoft.IdentityModel.Tokens;
using System.Text;

namespace ApiProject.Api
{
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        private string allowCors = "AllowCors";
        public IConfiguration Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {

            services.AddCors(Options =>
            {
                Options.AddPolicy(allowCors, builder =>
                {
                    builder.AllowAnyOrigin() //允许任何来源的主机访问
                    .AllowAnyMethod()
                    .AllowAnyHeader();
                });
            });

            //注册数据库上下文的容器
            services.AddDbContext<ApiProject.Api.Data.ApiProjectDb>(x => x.UseSqlServer());

            //注册对数据库的基本操作到容器
            services.AddScoped(typeof(IRepository<>), typeof(EfRepository<>));

            //注册验证器
            services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
            .AddJwtBearer(option =>
            {
                option.RequireHttpsMetadata = false;

                option.SaveToken = true;

                var token = Configuration.GetSection("tokenParameter").Get<Token>();

                option.TokenValidationParameters = new TokenValidationParameters
                {
                    ValidateIssuerSigningKey = true,
                    IssuerSigningKey = new SymmetricSecurityKey(Encoding.ASCII.GetBytes(token.Secret)),
                    ValidIssuer = token.Issuer,
                    ValidateIssuer = true,
                    ValidateAudience = false,
                };
            });






            services.AddControllers(options =>
            {
                options.Filters.Add(typeof(AuditLogActionFilter));
            });
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            app.UseRouting();

            app.UseStaticFiles();

            app.UseAuthentication();
            app.UseAuthorization();

            app.UseCors(allowCors);

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
            });
        }
    }
}
